KR101406464B1 - Heat treat apparatus for tempering a thin glass - Google Patents

Heat treat apparatus for tempering a thin glass Download PDF

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Publication number
KR101406464B1
KR101406464B1 KR1020130024559A KR20130024559A KR101406464B1 KR 101406464 B1 KR101406464 B1 KR 101406464B1 KR 1020130024559 A KR1020130024559 A KR 1020130024559A KR 20130024559 A KR20130024559 A KR 20130024559A KR 101406464 B1 KR101406464 B1 KR 101406464B1
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KR
South Korea
Prior art keywords
furnace
chemical strengthening
heating element
glass
chemical
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KR1020130024559A
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Korean (ko)
Inventor
김한곤
정숙자
김은식
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김한곤
김은식
정숙자
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Priority to KR1020130024559A priority Critical patent/KR101406464B1/en
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Publication of KR101406464B1 publication Critical patent/KR101406464B1/en

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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B27/00—Tempering or quenching glass products
    • C03B27/012—Tempering or quenching glass products by heat treatment, e.g. for crystallisation; Heat treatment of glass products before tempering by cooling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates

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  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

The present invention relates to a method for preheating a thin plate glass placed on a glass table by a sequential process so as to provide a positionally adjustable position of a heating element for chemically reinforcing the thin plate glass in a chemical strengthening furnace in which ion exchange is performed, , A chemical strengthening furnace, a slow annealing furnace and a cleaning furnace for chemical strengthening, slow cooling (cooling), washing treatment and strengthening, in order to reinforce heat treatment of the thin plate glass through a chemical strengthening furnace A plurality of heating elements are installed inside the chemical strengthening furnace in which the heat treating solution is filled; The heating element is configured to be selectively and positionally adjustably coupled to a plurality of heating element fixtures fixed at a predetermined interval on a side surface and a bottom surface in a container provided inside the chemical strengthening furnace.

Description

[0001] The present invention relates to a heat treatment apparatus for tempering a thin glass having a chemical strengthening furnace capable of adjusting the position of a heating element,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a thin film glass reinforced heat treatment apparatus, and more particularly, to a thin film glass reinforced heat treatment apparatus capable of regulating the position of a heating element for chemically reinforcing a heating element in a chemical strengthening furnace, To a thin glass reinforced heat treatment apparatus having a possible chemical strengthening furnace.

Generally, a heat treatment apparatus is installed to heat a glass used for a cell, a PC, a PDA, a navigation, a construction, and various industrial glasses by a chemical strengthening method. Examples of the heat treatment apparatus include a preheating furnace, a chemical strengthening furnace, A supporting roller provided on the rail, a traveling wheel, and a conveying carriage to preheat, heat, and cool the glass in a sequential process.

The usual chemical strengthening method of glass is to add potassium nitrate (KNO 3 ), which is a heat treatment powder, in the chemical strengthening furnace so that an ion exchange reaction with sodium ion (Na + ) having a small ion radius distributed on the surface is made to strengthen the glass surface Potassium ions (K + ) with a large ionic radius of potassium nitrate solution (KNO 3 ) which is liquefied after filling are substituted with each other to form a pressure stress layer by ion exchange reaction on the glass surface to strengthen the surface density of glass will be.

In order to raise the temperature of the heat treatment solution in the chemical strengthening furnace for the heat treatment of the glass by the chemical strengthening method to lower the temperature to the required temperature, conventionally, the operation of the heating means has been stopped, The natural cooling method has been adopted and used.

As a result, it takes a long time to lower the temperature of the heat treatment solution in the chemical strengthening furnace to an appropriate temperature, which results in a decrease in work efficiency.

Patent No. 10-0967799

Disclosure of the Invention The present invention has been made to solve the problems of the prior art as described above, and it is an object of the present invention to provide a heating body in a chemical strengthening furnace in which ion exchange is performed, , The direction of convection of heat treatment solution (KNO 3 ) can be diversified according to the location of the heating element, and a chemical strengthening furnace capable of controlling the position of the heating element to cope with the change in the size and thickness of the thin plate glass under the best conditions, The present invention has been made in view of the above problems.

In order to achieve the above-mentioned object, the present invention provides a method of manufacturing a glass laminate, comprising the steps of: preheating, chemical strengthening, slow cooling (cooling) And a cleaning furnace, wherein the plurality of heating elements are installed inside the chemical strengthening furnace in which the heating treatment solution is filled in order to reinforce the thin plate glass through the chemical strengthening furnace; Wherein the heating element is configured to be selectively fixed to a plurality of heating element fixtures fixed at a predetermined interval on a side surface and a bottom surface of a container provided in the chemical strengthening furnace. A thin glass reinforced heat treatment apparatus having a chemical strengthening furnace is provided.

The thin plate glass reinforced heat treatment apparatus having the chemical strengthening furnace capable of adjusting the position of the heating body according to the present invention can thus selectively place the heating body applied as the heating means provided in the chemical strengthening furnace, There is an advantage that the ion reaction can be maximized by activating the convection of a potassium nitrate (KNO 3 ) solution as an internal heat treatment solution.

In particular, the position of the heating element can be selectively adjusted to suit the chemical strengthening heat treatment conditions and characteristics depending on the size and thickness of the thin plate glass.

In addition, the convection direction of the heat treatment solution can be forcibly adjusted in various directions such as up and down, right and left directions, and there is an advantage that the substitution of the ion radius can be diversified.

1 is an overall side view of a thin plate glass reinforced heat treatment apparatus having a chemical strengthening furnace capable of adjusting the position of a heating element according to the present invention,
2 is a side view of a chemical strengthening furnace according to the present invention,
FIG. 3 is a side view of a heating furnace in a chemical strengthening furnace according to the present invention, FIG.
FIG. 4 is a side view showing various installed states of a heating element according to the present invention,
FIG. 5 and FIG. 6 are side views showing the configuration of a collection cradle according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 6, a thin plate glass reinforced heat treatment apparatus having a chemical strengthening furnace capable of adjusting the position of a heating element according to the present invention comprises a moving plate 5 mounted on a glass plate 7, The preheating furnace 1, the chemical strengthening furnace 2, the annealing furnace 3, and the washing furnace 4 are installed to perform preheating, chemical strengthening, slow cooling (cooling) and washing treatment in a sequential process.

Among the preheating furnace 1, the chemical strengthening furnace 2, the annealing furnace 3 and the washing furnace 4, in particular, in the chemical strengthening furnace 2, sodium borohydride Potassium nitrate (KNO 3 ), which is a heat treatment powder, is charged in the chemical strengthening furnace 2 so that an ion exchange reaction with ions (Na + ) is generated.

The potassium nitrate (KNO 3 ) is liquefied by the heating means provided in the chemical strengthening furnace (2), and the ionic radius (Na + ) of the potassium nitrate (KNO 3 ) solution This large potassium ion (K + ) is substituted for each other, and at this time, a pressure stress layer by ion exchange reaction is formed on the glass surface, and a tempered glass having a large surface density is formed.

It is possible to selectively place the heating element 10 applied as the heating means provided in the chemical strengthening furnace 2 so that the convection of the potassium nitrate (KNO 3 ) solution in the chemical strengthening furnace 2 The direction is vertically, horizontally, and variously forcibly adjusted to maximize the ionic reaction.

At this time, the heating element 10 is mainly a rod-shaped heater, and any heating element 10 may be used as long as it can be installed in the chemical strengthening furnace 2. In this case, it is preferable that the rod-shaped heating element 10 is installed in the chemical strengthening furnace 2 in the horizontal direction.

The present invention 2 and With reference to Figure 3, the thin plate heat-treated solution of potassium nitrate (KNO 3), the glass to heat treatment enhanced chemical a plurality of heating elements (10 in the interior of a chemical strengthening to be filled (2) To this end, ).

The heating element 10 is a means provided to heat the heat treatment solution to 350 to 500 DEG C so that the ion exchange reaction is performed on the surface of the thin plate glass.

The heating element 10 is fixedly coupled to a plurality of heating element fixing rods 20 fixed at an interval on an inner side surface and a bottom surface of the container 9 provided in the chemical strengthening furnace 2, do.

3, the heating element 10 may be selectively coupled to a plurality of heating element fixtures 20 fixed at a predetermined interval on the side surface and the bottom surface of the container 9 provided in the chemical strengthening furnace 2, Structure.

4, when the heating element 10 is installed only on the bottom surface of the vessel 9 as shown in FIG. 4A, the convection of the heat treatment solution is made from the lower side to the upper side The convection of the heat treatment solution is made from the side surface to the center side as shown in FIG. 4 (b), and when the heating element 10 is installed only on the side surface, The convection of the heat treatment solution is formed on the diagonal upper side of the other side portion. If the heat treatment solution is installed on both the side surface and the bottom surface as shown in FIG. 4 (d) To the center side.

The above conditions are set so as to be adjustable according to the chemical strengthening heat treatment conditions and characteristics of the thin plate glass.

As a structure for implementing another method, as shown in FIG. 1, a plurality of the chemical strengthening furnaces 2 may be provided, and the positions of the heating bodies 10 may be coupled and fixed for each of the chemical strengthening furnaces 2.

5, in order to collect non-products including glass fragments generated in the process of reinforcing heat treatment of the thin plate glass placed on the glass table 7 at the inner bottom portion of the chemical strengthening furnace 2, (30). At this time, as shown in FIG. 6, the collection stand 30 is configured to be lifted out by using a lifting means 36 such as a hoist installed in a workplace.

The broken glass is dropped to the lower side during the maintenance of the cleanliness and the strengthening heat treatment inside the chemical strengthening furnace 2 and when the chemical strengthening furnace 2 is left untreated, The inner space is reduced, which affects the agitation of the heat treatment solution and adversely affects the production of the product. Therefore, by providing the collection stand 30 for periodical cleaning management, it is possible to smoothly produce the thin plate glass. In addition, since the collection stand 30 can be cleaned by being lifted out by means of a lifting means 36 such as a hoist installed on the worksite, it is possible to perform a reliable operation in the interior of the chemical strengthening furnace.

2: chemical strengthening furnace 9: container
10: Heating element 20: Heating element fixing table
30: Cradle for collection

Claims (5)

(1), the chemical strengthening furnace (2), the annealing furnace (3) and the cleaning furnace (3) for the purpose of preheating, chemical strengthening, slow cooling 4), characterized in that:
Providing a plurality of heating elements (10) in a chemical strengthening furnace (2) filled with a heat treating solution for strengthening heat treatment of the thin plate glass through a chemical strengthening furnace (2);
The heating element (10)
Wherein the plurality of heating elements are fixedly coupled to a plurality of heating element fixtures (20) fixedly provided on side surfaces and bottom surfaces of a container (9) provided in the chemical strengthening furnace (2) And a chemical tempering furnace capable of controlling the position of the glass reinforcing furnace.
The method according to claim 1,
The plurality of chemical strengthening furnaces (2) are provided,
Characterized in that the positions of the heat generating elements (10) are fixed to each other in each of the chemical strengthening furnaces (2) by a chemical tempering furnace.
The method according to claim 1,
And a collection stand 30 for collecting non-products including glass fragments generated in the process of reinforcing heat treatment of the thin plate glass placed on the glass table 7 at the inner bottom portion of the chemical strengthening furnace 2 And a chemical tempering furnace capable of controlling the position of the heating element.
The method of claim 3,
The collection cradle 30 is moved to the outside of the upper part of the chemical strengthening furnace 2 by the elevating means 36 provided on the upper side of the chemical strengthening furnace 2 so as to clean the collection cradle 30 A tempered glass tempering apparatus having a chemical strengthening furnace capable of adjusting the position of a heating element.
The method according to claim 1,
The heat-generating body (10) is a bar-shaped heater, and is installed horizontally in the chemical strengthening furnace (2), characterized in that the position of the heating body is adjustable.
KR1020130024559A 2013-03-07 2013-03-07 Heat treat apparatus for tempering a thin glass KR101406464B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020130024559A KR101406464B1 (en) 2013-03-07 2013-03-07 Heat treat apparatus for tempering a thin glass

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Application Number Priority Date Filing Date Title
KR1020130024559A KR101406464B1 (en) 2013-03-07 2013-03-07 Heat treat apparatus for tempering a thin glass

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KR101406464B1 true KR101406464B1 (en) 2014-06-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113045221A (en) * 2019-12-26 2021-06-29 三星显示有限公司 Glass substrate chemical strengthening furnace device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100864956B1 (en) 2008-07-29 2008-10-22 (주)한소닉에이스 Manufacture apparatus for tempered glass and manufacture method for tempered glass
KR101120262B1 (en) 2011-09-23 2012-03-16 주식회사 도우인시스 Furnace apparatus for manufacturing of tempered glass
KR101143303B1 (en) 2011-11-15 2012-05-14 주식회사 도우인시스 Chemical furnace apparatus for uniform tempered glass

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100864956B1 (en) 2008-07-29 2008-10-22 (주)한소닉에이스 Manufacture apparatus for tempered glass and manufacture method for tempered glass
KR101120262B1 (en) 2011-09-23 2012-03-16 주식회사 도우인시스 Furnace apparatus for manufacturing of tempered glass
KR101143303B1 (en) 2011-11-15 2012-05-14 주식회사 도우인시스 Chemical furnace apparatus for uniform tempered glass

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113045221A (en) * 2019-12-26 2021-06-29 三星显示有限公司 Glass substrate chemical strengthening furnace device
US11952309B2 (en) 2019-12-26 2024-04-09 Samsung Display Co., Ltd. Glass substrate chemical strengthening furnace apparatus

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